Curtain arrays are a class of large multielement directional radio transmitting wire antennas, used in the short-wave radio bands. They constitute a type...
21 KB (2,419 words) - 15:11, 8 August 2024
An antenna array (or array antenna) is a set of multiple connected antennas which work together as a single antenna, to transmit or receive radio waves...
26 KB (3,365 words) - 04:04, 9 August 2024
Other names are bedspring array and bowtie array depending on the type of elements making up the antenna. The curtain array is a larger version used by...
14 KB (1,633 words) - 04:32, 23 April 2024
Antenna types (section Array antenna)
dipole elements makes the combination of the arrayed elements moderately directional. Curtain array A curtain array is any one of several designs for large...
91 KB (12,178 words) - 05:04, 2 September 2024
modest-gain single-band curtain array antennas. They are named after Ernest J. Sterba, who developed a simple shortwave curtain array for Bell Labs in the...
2 KB (216 words) - 02:37, 19 February 2022
antennas consist of a dipole about 1 /4 wavelength above ground, or arrays of such dipoles. Up to 16 dipoles can be used, allowing strong signals with...
13 KB (1,533 words) - 02:21, 16 August 2024
Moxon rectangle is a simple and mechanically rugged two-element parasitic array, single-frequency antenna. It takes its name from the amateur radio operator...
6 KB (694 words) - 06:47, 20 August 2024
antenna Choke ring antenna Collinear antenna array Conformal antenna Corner reflector antenna Curtain array Folded inverted conformal antenna Fractal antenna...
5 KB (628 words) - 12:56, 1 August 2023
footballer Ruth F. Curtain (1941–2018), Australian mathematician Curtain array antenna Curtained hair or curtains, a hairstyle featuring a long fringe Shutter...
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Franklin went on to refine the directional transmission by inventing the curtain array aerial system. In July 1924, Marconi entered into contracts with the...
57 KB (6,036 words) - 13:27, 31 July 2024
antennas. Powerful shortwave broadcasting stations often use large wire curtain arrays. Antennas for transmitting skywaves are typically made from horizontal...
17 KB (1,930 words) - 23:33, 6 August 2024
shortwave antennas for international broadcasting are the HRS antenna (curtain array), which cover a 2 to 1 frequency range and the log-periodic antenna...
37 KB (5,261 words) - 04:04, 26 August 2024
and curtain arrays. Larger log periodics provide wider frequency coverage with comparable gain to rhombics. Distributed feed curtains or HRS curtain arrays...
10 KB (1,102 words) - 15:30, 29 October 2023
a roundabout a few hundred metres from the original site. Rotatable curtain array antennas were not in common use until the 1960s, so PCJ was far ahead...
16 KB (1,673 words) - 14:12, 2 September 2024
ended. A portion of the large RCI shortwave antenna system (known as a curtain array) is visible in the background. The antennas were removed in 2014, although...
36 KB (3,935 words) - 19:11, 3 September 2024
short wave antennas have been blasted and dismantled. Among these the curtain antenna "G1". 55°48′22″N 13°43′16″E / 55.80611°N 13.72111°E / 55.80611;...
2 KB (235 words) - 09:40, 27 June 2019
before HRS 12/6/1 technology became available in the west. HRS 8/8/1 curtain arrays create a 10-degree beam of shortwave energy, and can provide a highly...
13 KB (1,144 words) - 16:46, 28 June 2024
antenna Choke ring antenna Collinear antenna array Conformal antenna Corner reflector antenna Curtain array Folded inverted conformal antenna Fractal antenna...
2 KB (179 words) - 01:33, 6 January 2020
passive reflector wire, spaced 0.18 wavelength back. The resulting curtain array antenna produced a horizontally polarised signal that was directed strongly...
114 KB (14,534 words) - 12:31, 29 July 2024
Former RFI Issoudun Relay station feeders and curtain arrays Former RFI Issoudun Relay curtain arrays (1990s) The International broadcasting center of...
10 KB (1,074 words) - 11:02, 21 August 2024
1.6 megawatts, broadcasting from 10 transmitters and a huge array of more than 20 curtain antennas. The feeder lines - which fed the signal from the transmitter...
13 KB (1,505 words) - 08:41, 21 June 2024
transmitter and a 30-year-old RCA transmitter all feeding several stacked curtain arrays which are beamed on South East Asia. They operate mainly on the 9 and...
12 KB (1,136 words) - 02:53, 29 February 2024
Ciborium (architecture) (redirect from Altar Curtain)
Temple of Jerusalem, a room whose entrance was covered by the parochet, a curtain or "veil", was certainly regarded as a precedent by the church; the naos...
26 KB (3,225 words) - 09:44, 29 June 2024
decommissioned, the VLQ9 and VLM4 services were discontinued and the shortwave curtain array antennas removed. The original VLQ transmitter is completely preserved...
16 KB (1,989 words) - 13:51, 25 April 2024
Former RFI Issoudun Relay station feeders and curtain arrays Former RFI Issoudun Relay curtain arrays The International broadcasting center of TDF (Télédiffusion...
11 KB (1,590 words) - 19:23, 1 June 2024
capable of DRM digital shortwave transmissions. An image of the rotatable curtain array antenna in Montsinéry can be found by searching Flickr for "Montsinery...
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complete new installation. Ten 500 kW transmitters and 34 wideband curtain arrays were installed. The majority of antennas point in an Easterly direction...
10 KB (1,213 words) - 15:27, 29 July 2022
broadcasts used a series of shorter free-standing masts supporting curtain arrays.[citation needed] Under the right conditions, the AM signal for National...
6 KB (619 words) - 03:09, 15 June 2024
implementation commenced shortly thereafter with the installation of two TCI curtain arrays, one beamed towards PNG and the other towards the Coral Sea and beyond...
24 KB (2,574 words) - 23:48, 10 August 2024
Former RFI Issoudun Relay station feeders and curtain arrays Former RFI Issoudun Relay curtain arrays The International broadcasting center of TDF (Télédiffusion...
7 KB (887 words) - 15:13, 25 March 2023